基于像元二分模型的北票市植被覆盖度动态变化研究

Study on Dynamic Change of Vegetation Coverage in Beipiao City Based on Pixel Bipartite Model

植被覆盖度是衡量植被群落对地表覆盖的一个综合指标,应用ENVI软件和NDVI植被归一化指数可以快速获得研究区域的植被覆盖度。本文以辽宁省北票市的Landset-8遥感影像为研究对象,应用ENVI软件,在像元二分模型的基础上,利用NDVI归一化植被指数对辽宁省北票市植被覆盖度进行估算,得出了2013、2015、20173个年度覆盖度的变化情况。

Vegetation coverage is a comprehensive index to measure the vegetation community's surface coverage.The vegetation coverage of the study area can be obtained quickly by using ENVI software and NDVI vegetation normalization index.Based on landset8 remote sensing image as the research object,this paper applied the ENVI software,in pixels,binary model,on the basis of using the normalized difference vegetation index NDVI to Liaoning saves estimation of vegetation coverage,it is concluded that the 2013,2015,2017,the change of three year coverage.